corundum


corundum
корунд m

Metallurgy dictionary. 2015.

Смотреть что такое "corundum" в других словарях:

  • Corundum — General Category Oxide mineral – Hematite group Chemical formula Alumi …   Wikipedia

  • Corundum — Co*run dum (k[ o]*r[u^]n d[u^]m), n.; pl. {Corundums} (k[ o]*r[u^]n d[u^]mz). [Also corindon.] [From Hind. kurand corundum stone.] (Min.) The mineral alumina ({Al2O3}), as found native in a crystalline state. Transparent varieties are used as… …   The Collaborative International Dictionary of English

  • corundum — very hard mineral, 1728, from Anglo Indian, from Tamil kurundam ruby sapphire (Skt. kuruvinda), of unknown origin …   Etymology dictionary

  • corundum — ► NOUN ▪ extremely hard crystallized alumina, used as an abrasive. ORIGIN Tamil …   English terms dictionary

  • corundum — [kə run′dəm] n. [Tamil kurundam < Sans kuruvinda, ruby] a very hard mineral, aluminum oxide, Al2O3: a dark, coarse variety ( emery) is used for grinding and polishing; clear, transparent varieties ( ruby, sapphire) are used as gems: see MOHS… …   English World dictionary

  • corundum — /keuh run deuhm/, n. a common mineral, aluminum oxide, Al2O3, notable for its hardness: transparent varieties, as sapphire and ruby, are used as gems, other varieties as abrasives: often made synthetically. [1720 30; < Tamil kuruntam; akin to Skt …   Universalium

  • corundum — korundas statusas T sritis radioelektronika atitikmenys: angl. corundum vok. Korund, m rus. корунд, m pranc. corindon, m …   Radioelektronikos terminų žodynas

  • corundum — korundas statusas T sritis chemija apibrėžtis Mineralas. formulė Al₂O₃ atitikmenys: angl. corundum rus. корунд …   Chemijos terminų aiškinamasis žodynas

  • corundum — noun Etymology: Tamil kuruntam; akin to Sanskrit kuruvinda ruby Date: 1804 a very hard mineral that consists of aluminum oxide occurring in massive and crystalline forms, that can be synthesized, and that is used for gemstones (as ruby and… …   New Collegiate Dictionary

  • corundum — noun an extremely hard mineral, a form of aluminium oxide with the chemical formula AlO, that occurs in the form of the gemstones ruby and sapphire; it is used as an abrasive …   Wiktionary

  • corundum — Native crystalline aluminum oxide. [Hind. kurand] * * * co·run·dum kə rən dəm n a very hard mineral Al2O3 that consists of alumina occurring in massive form and as variously colored crystals which include the ruby and sapphire * * * co·run·dum… …   Medical dictionary


Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.